code: def unpack_batch(batch, device):
      """Unpack a batch from the data loader."""
      inputs = [
          b.to(device) if b is not None else None for b in batch[:11]
      ]
      orig_idx = batch[11]
      word_orig_idx = batch[12]
      sentlens = batch[13]
      wordlens = batch[14]
      text = batch[15]
      return inputs, orig_idx, word_orig_idx, sentlens, wordlens, text
  
file_path: stanza/stanza/models/depparse/trainer.py
imports: import sys
  import logging
  import torch
  from torch import nn
  from stanza.models.common.trainer import Trainer
  from stanza.models.common import utils, loss
  from stanza.models.common.foundation_cache import NoTransformerFoundationCache
  from stanza.models.common.chuliu_edmonds import chuliu_edmonds_one_root
  from stanza.models.depparse.model import Parser
  from stanza.models.pos.vocab import MultiVocab
label_desc: Use image node_id 1 for calling a global function with example usage: unpack_batch(batch, device) and returns: inputs,  orig_idx,  word_orig_idx,  sentlens,  wordlens,  text